Paper clamp



Nov. 6, 1951 c. Kl KU PAPER CLAMP Filed March 8, 1949 INVENTOR [/M/A/ Au ATTORNEY l 'atentecl Nov. 6, 1951 its inv stments wer were:

v number .oi i neet oee h t i siip qtfthe semef a a n t re at v s i b i 'uellew fihi p ct to t e Mere ,r ert' ula lm e nvent o ea s th??- v with a device bit th Hare ter de r bed: Whwh ay b ecuredat from a support in maintaining the secured-nor b und sh ts i arredetermi d p0$i 9 T no el iea res o the invent on wil b st ake o ether. w hr h so nwhich ce ta n be e s losed andinvr are designated by suit e rei nc r a h of the views an 1' in .-F 1 s a .pe speet ve iew 9 ccordin to myi nvent oni i ,2 isle lon i udinal ectional riewlthrm gh the devi elasseen iniFi l- 4 Fig. .3 isia re sese ti n Q1 .thelihQSQnilFia ,;and a v"F gs;. 'assest ensmith e imp ve s et .he ii s' 11 b r d o comp s binde end. is u li ed-Primar 9.

suppo s e ts asuriece b a n a 'h neapbsir tion t s s w thitllv 'n ed o c nve i iqne i b nder nd th t d s n W h'the need of perfo ati l ibfi f fi 1 79 ade t i m 1 93. 2 n bind r Quite often it isidesirableito inaintai 5 r, of she sw en mi ht Qe ie eat e ee d e ede iensh n .v r-.s o s :9 de ermined, ipq omne respect to a support and; it isithe obj v 1' 3.;

nve io o ro id lnfiloneetee h ethsild dev ce h yin m srwvidine aisle in easement wit i e. edges ,of sh ets leave the major portion .of each sheet exposed :tO be freely readable as and whendesired. i 1

- in the accompanying drawing, Ishaveushown oneuadaptation of my i-nvention, inxwh'ich a strip of metal is bent to form-a supporting frame In, comprising a bottom-wall T H an upstanding wall part n crossnead 1651: md We'l Lzie ntr v i I rearward-1y extending apertured flange," form;

su tab e ue e er u s seems n. 119141 2 2 thesame together and,-.in such manne resorts.

nderst od .f om thejfollo -de e ipti ez nl pantiee dra in 1 f the v inven n liyas wil lbe apparent,

t e drawing Th t c iif waul! asst mg haiige m an's, as ana whenthedeviceijs st pqrt ,on a an ing hook, nail orjt ke i -eas b w th wa ls J end 15}? t f channelj l centrally thereof is a nut bloc 8 fixed in position by findentlires l.f!, note Fig. 2f

and? 21 orjire re s es of a e em ;.s W 2.2 Y th i thmuseuthe ew ee s e. the. n b19919 2 @9 1? r d as iii- 9 rec ive serene il Otherifes' essi re e hm e t at k a jf ebe tbm were wa sending assesse table or other support, d agrarninatg 11y i e by tint and d s H r.- ward edge, an elongated bevelled lip Zfi, which; provides free passage or entrance of a, sheet or a series of sheets onto the upper surface .of the wall H. The wall H has longitudinal parallel grooves 27 on the upper surface thereof which Work in conjunction with corresponding ribs 28 o i'a clamp bar 29 in firmly gripping and hold-. ing sheets held in the device against displacernent therefrom.

The gripper bar is substantially the length of the lip flange 26 and upstanding wall l2 of the frame, as will clearly appear from Fig. 2 of the drawing, and this bar is supported on thelowver endof the screw 22 through the medium of a couplingplate' 3B. The plate 30 is held on the k 13 f th scre fit n ly "int sma l r.-

part of said aperture .so

as to definitely couple the plateiilfas'rwell as the bar 29, with-the screw, hile atthese .time'providin ree rotitiliqntq the screw injthe plate 30';

In ot r Wa ds, in ass mb a e. th h ad 36 passed down through the larger part of. thek iol perture'fiia d t pl'ate 301 s the toithe rightgasseeniin theldrawing, so as) Y .i gage t e eck" 31 .Fiiredto the screw zziabf e relation t -th l5 is ami nuti38, forming a fingerpiece' portion by nians assets of which the screw can be manually rotated. It will be apparent that the guide rods 3| maintain the projecting ribs 28 of the clamp bar 29 in vertical alinement or relationship with the grooves 21 of the bottom wall. It willalso be noted that the edge of the bar, directly above the flange lip 26, is also bevelled, as seen at 39.

It will be apparent from a consideration of the device that, aside from the blanking and forming operations which are disclosed; in shaping the frame [0, the bar 29 and the plate 30 and the conventional operations of forming the remaining parts, the frame is simply bent to form the respective walls thereof, thus no complicated operations are provided in the construction of the parts. Therefore, devices of the kind under consideration can be produced very economical- 1y upon the sheets for the mounting or binding One of the distinctive advantages in a sheet thereof, such for example as the perforation of sheets for ring binders. Furthermore, by utilizing sheet holding or binding devices of the character described, the sheets are readily accessible for examination and, in this examination, are retained against relative shifting 0r displacement one with respect to the other. It will be apparent, that a long gripping engagement of the sheets is provided, thus further dispensing with rupture or tearing which is also experienced with other types of binders where the sheet is punctured, apertured or otherwise weakened at the edge portions thereof. Devices of the kind under consideration can also be utilized as a means for supporting sheet-like articles for hanging display, particularly where a firm engagement with the article is desirable.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A device for retaining a plurality of sheets in assembled relationship to each other, said device comprising a frame having a bottom wall and spaced top walls integrally joining the bottom wall by a perpendicular back wall, the bottom wall having a bevelled edge facilitating guidance of sheets onto the upper surface of the bottom wall, an elongated clamp bar arranged between the bottom and top walls, spaced rods on said bar and operatively engaging the top walls to guide said bar and maintain alinement thereof with respect to the bottom wall, a bowed coupling plate secured to the top of the bar by said rods, a nut supported between the top walls, a screw engaging said nut, a head at the lower end of the screw engaging the bowed portion of the coupling plate in coupling the bar with said screw, and a fingerpiece on said screw to move the bar toward said bottom wall in clamping a plurality of sheets between said bar and bottom wall.

2. A device for retaining a plurality of sheets in assembled relationship to each other, said device comprising a frame having a bottom wall and spaced top wallsintegrally joining the bottom wall by a perpendicular back wall, the bottom wall having a bevelled edge facilitating guidance of sheets onto the upper surface of the bottom wall, an elongated clamp bar arranged between the bottom and top walls, spaced rods on said bar and operatively engaging the top walls to guide said bar and maintain alinement thereof with respect to the bottom wall, a bowed coupling plate secured to the top of the bar by said rods, a nut supported between the top walls, a screw engaging said nut, a head at the lower end of the screw engaging the bowed portion of the coupling plate in coupling the bar with said screw, a fingerpiece on said screw to move the bar toward said bottom wall in clamping a plurality -of sheets between said bar and bottom wall, and the bowed portion of said coupling plate having a keyhole aperture therein engaged by the head end of said screw for detachably coupling said screw with said strip.

3. A device of the character described, comprising a single sheet of material fashioned to formspaced bottom and top walls integrally joined bya perpendicular back wall, the top wall comprising a channelled portion, a nut supported centrally within the channelled portion, a perpendicular screw operatively engaging the nut, an elongated clamp bar arranged between said top and bottom walls, the screw having, at the lower end thereof, a neck portion, rods on said bar in spaced relation to the screw and operatively engaging the top wall to aline the bar in its movement, in the frame, a coupling plate s pported on the bar by' said rods, said coupling plate having a bowed central portion with a keyhole aperturethereimsaid keyhole aperture engaging said neck portion in coupling the screw with said bar, and a fingerpiece portion on the screw beyond the top wall to actuate the same in movement of the bar toward and from said bottom wall. 7 l

4. A device of the'character described, comprising a single sheet of material fashioned to form spaced bottom and top walls integrally joined by a perpendicular back wall, the top wall comprising a channelled portion, a nut supported centrally within the channelled portion, a perpendicular screw operatively engaging the nut, an elongated clamp bar arranged between said top and bottom walls, the screw having, at the lower end thereof, a neck portion, rods on said bar in spaced relation to the screw and operatively engaging the top wall to aline the bar in its movement in the frame, a coupling plate supported on the bar by said rods, said coupling plate 1 having a bowed central portion with a keyhole aperture centrally thereof, said keyhole aperture engaging said neck portion in coupling the screw with said bar, a fingerpiece portion on the screw beyond the top wall to actuate the same in movement of the bar toward and from said bottom wall, and means providing gripper surfaces between the lower surface of the bar and the upper surface o-fsaid bottom wall.

5. A device of the character described, comprising "a single sheet of material fashioned to form spaced bottom and top walls integrally joined bya perpendicular back wall, the top wall comprising a channelled portion, a nut supported' centrally within the channelled portion, a perpendicular screw operatively engaging the nut, an elongated clamp bar arranged between said top and'bottom walls, the screw having, at the lower end thereof, a neck portion, rods on saidbar in spaced relation to the screw and operatively engaging the top wall to aline the bar in its movementin the frame, a coupling plate supported on the bar by, said rods, said coupling plate having a bowed central portion with a keyhole aperture therein, said keyhole aperture engaging said neck portion in coupling the screw with said bar, a fingerpiece portion on the screw beyond thetbp wall to actuate the same in mov e- 5 ment of the bar toward and from said bottom Number wall, and outer edges of the bottom wall and bar 479,014 being bevelled in opposite directions. 805,507 CHAIN KI KU. 971,294 5 1,064,675 REFERENCES CITED 1,422,658 The following references are of record in the 1,682 file of this patent:

UNITED STATES PATENTS Number Number Name Date 5,793 303,313 Nesbitt Aug. 12, 1884 12,813

377,526 Levy Feb. 7, 1888 Name Date McDonald July 19, 1892 Watt Nov. 28, 1905 McBee Sept. 27, 1910 Vander Wel June 10, 1913 Brooks July 11, 1927 Disbrow Aug. 28, 1928 FOREIGN PATENTS Country Date Great Britain of 1912 Great Britain of 1885 

